After Humanity

It was on new years day in the year 2020 when the world turned to dust and ashes. Not a human, mammal, or even an insect were in plain sight. With the earth's magnetic field down, various creatures roam Mother Earth, seeking both the destruction of any organism left alive and to satisfy their eternal hunger. To repair the damage, other mysterious beings must resurrect the biosphere of the Earth, so that Mother Earth can have strength enough to activate her magnetic field from other fiends who wish to dominate her. An easy task for the intellectual pacifists but, what would become of Mother Earth if a confused blueprint of humanity were to roam the earth? Will it apprehend enough understanding to bring back what was lost of the world? Or will it self-destruct in the process?